It wouldn’t make any sense for a ‘Catholic theologian’ to speculate on the date of Jesus’ second coming, since the Church stresses that we cannot know the day or the hour, as others have mentioned here.
A lot due to the fact that Israel became a nation in 1948, along with other fulfilled prophecies.
Again, that is just conjecture – prophecy ‘fulfillment’ is a tricky thing. A thousand years ago, as the year 1000 approached, people asserted that prophecies had been fulfilled and the end was near. During the Black Plague, people asserted that prophecies had been fulfilled and the end was near. During WWII, people asserted that prophecies had been fulfilled and the end was near. See a pattern? Each generation sees the prophecies as being fulfilled in their times, and conclude that the end is near. (So far, the prognosticators for the end times are batting a big fat 0.000
Yes, one day the end will come; but the Church asserts that we cannot know that day in advance.)
Is this time frame based on teaching from our Catholic Magisterium in understanding prophecy?
Not in the least.
Protestants talk about it a lot, and in fact you can see them planning for it and giving advice to their flock about how to prepare.
What they tend to plan for is the ‘Rapture’ … which is something that is not accepted in Catholic theology.
On the other hand, if true, shouldn’t this teaching be a regular part of Catholic teaching/homilies?
Here’s the thing: how, exactly, does one prepare for the end of the world? After all, no one ‘survives’ it…
I know my own Parish never talks about the Great Tribulation.
Here’s the thing: Protestant theologies look at the Book of Revelation in a variety of ways. Many believe that the things mentioned in the Book of Revelation have yet to occur. The Catholic Church, on the other hand, tends to be preterist in its understanding of the Book of Revelation – that is, that the bulk of the items that are being discussed there have been fulfilled in the first century (or first couple of centuries) A.D.
So… what would you have your priests say about a ‘Great Tribulation’, when it is only Protestant theologians that tend to see it as a future event?
Is this timeline of the Tribulation related to Dispensationalism? Or is it part of authorized Catholic teaching?
Dispensationalists look for an upcoming tribulation. No, the timeline you mention is not part of Catholic teaching.